Mechanical time-fuse.



' .driving gear o nnrrnn efraim@ PATENT OFFICE.

KAEL WIESER,

KEUR? .AJKTEN- MECHANICAL TIME-FUSE.

Sgeceaton of Letters Patent.

PatientedSept. 9, '19.13.

Application led May 225 1911'. Serial No. 628,847.

To awhom t muy concern.'

Be it known that;v I., KARL Vllnasnnj a suhjechofl the Emperor ofGermany, andia resi( dent of'redeney, (nlerrnany7 have invented certainnew .and useful linproveinente in Mechanical Tiin.el*"uses, of which the'teh lowing is a speeiication.

The presenti invention rel atee to a nmehamcal time fusse, havingA aloekinl plate attached in sueh a manner by friction to a spindle,actuated by the driving. gear, that theA loekii'ig plate may he turned:independently of the driving gear of the fuse, with the object of'settingl the fuse.

The invention consists in a device Where by the looking plate will helocked to the spindle, when actuated onN by the inertia caused loy thetiring of the-"gun,

An embodiment. of the invention is shown in4 the draw.ing,' wherei n'FFigure l is a longitudinal Sect-ion ol the fuse,vwith Sonie ofpthe parteshown in full. The. following figures are in lai r seele, and Fig.. 2 isa 'plan section on nie 2-2 oiiFig. l, seen` from above; and Fig. 3 .is a

section on line 3m?, olf Fig. 2, lookingl in. the

direction ot the arrow 13.

The ifurwtlon of the locking plate A, Illsg.

to )in it, any wringing oi che hook L that would. sei. the :tiringspring' l. free, he-

iol-e the tun has; fagosed for which the la aeconiphslled1 in wellfuse.is .eeh

known manner, hy the locking plate A, 'with lere?- (not shown), coin- Uo hold the tiring Hering:

the assistance el' peiling the hool B cocked'. lhe made of a coialnnifnuni te s gindle-Xl)o hoelang plate, being liiiratii/ely so'material, 1 sur iS niaunted on a. il? Whifli is operated by the` the unefusse, as tor instance a eloelmforlt. not, shown in the drawller-vingti; is iori-atiin: of the fuse, the. ate A. .is held. on the spindle D'.y friction., eo that the plate A. may ed indent dently of. the spiudlel), the Linee, actuated hy the dome through the cou'lling 0,1 c1.,

The locking late A is supported by a @Hspring Ilhg. @resting against aShoulalecording to the lawl der lli of the' spindle D. A pressure blockGf, having a soft inet-al lilling g1, is .mounted ou top off the lockingplate A, in a .manner hors-tshorvn in Fig. 3; A collar nut fl, Serewedlon to the threaded end Z3 of the :spindle 1?), holds the dill'erent.parts together. The threaded end di reaches up through the block Gr,whore it is partly inelosed by the soft, metal* tilting g?. The amountoit frieti'on that is required' to couple the locking plate A and thespindle l) together, may be adjusted by burning the nut Z2 on thespindle, thus changing the pressure of the cup-spring l?. '.lhe spindleD has between its sl'iouldei.' (i'f and the thneadedf end cl3 a squarepart d* tapering towardthe threadedv end (Z3, Fig. 3, 'so that it mayenter partly into a suitably Shaped opening in the locking plate A1,when said plate is axially displaced from its position. indicatedI inFig. B against the pressure of' the Spring F. Untilt-he fuse is used,the opening in said' plate A lies altogether above the square part (Z4of the spindle, so that the plate A?, in setting the fune, ina'y beturned Witghouti hindrance around the spindle l5. 'llhe axialdisplacement et the locking plate A has furthermore the advantageu that,itl is possible to construct the coupling 0,1i el very simply, the Said;axial diaglaoenient o'f'tl'le locking plate being utilized. forautomatically disconnecting said coupling: his is sihown-y inl Figs. 2and. il', it; is enough-to solidly attach an arin al to the lockingplate A, and to the outer adjust-able dome Ei likewise secure a fork elengaging 'said arm before the displacement taltesvplaee, but directlythereafter the eoupling 101 is disengaged'. The simplicity of said'coupling is evident., as, While according to the present invention bothparts of the coupling are rigidly attached to tl'leifr respectivecarriers, in. heretofore known ti'ine fuses,- at. leastA one of' Saidcoupling members lied to be movably secured to itsearrier.

On iii-ing the projectile, `the locking plate A, together with thepressure hlock G is snapped: back against the. spring.; pressure, ofLinertia, andi forced over the square d4, the edges thereof cutting intothe locking plate, thus securing it to the spindle D. The soft metalfilling g1 Will then be pressed into ythe threads or'v the spindle,thereby preventing the spring F from pushing the locking 4,plate back toits original position, on disappearance of the force of inertia. At thesame m-oment. that the locking plate A has thus been' secured to thesquare part d, the arm al has slipped out of the grip of the socket el;and the locking plate will begin to revolve with the spindle D, actuatedby the driving gear of the time fuse, whereupon the hook C will lSetfree thefiring spring B, directly the time has elapsed for which thefuse was set. As ther locking plate A, at the moment of uncoupling fromthe dome E, is already securely attached to the spindle D, thetangentially acting forces of inertia, that comparatively late obtaintheir greatest power, will be unable to turn the locking plate on thespindle-D. Through this a source of failure, that must not be neglected,has been eliminated. l

I claim l. In a mechanical time fuse comprising a fuse setting means, aspindle and a driving gear for said spindle; a. member mounted on saidspindle, said member being 'adapted to turn independently of the spindlein setting the fuse and to be locked to the spindle bythe shock :tromthe firing of the projectile.

2. In a mechanical time fuse comprising a fuse set-ting dome, a drivingspindle; a member in engagement with said dome during the setting ofthe, fuse, said member being mounted on said spindle and adapted t0 turnwith the dome for setting the fuse, independently of the spindle; saidmember being brought into engagement with the spindle by the shock fromthe firing of the projectile; this shock causing the disconnectionbetween said dome and said member, simultaneously with the interlockingof said member and said spindle.

3.y In a mechanical time fuse comprising a fuse setting dome,

mounted on said spindle and adapted to turn with the dome. for settingthe fuse independently of the spindle; said member being brought int-oengagement with said spindle by the shock from the firing of the pro`jectile; this shock causing' an axial displacement of said member,thereby disconnecting simultaneously with the interlocking of saidmember and said spindle. i

4. In a mechanical time fuse comprising a fuse setting dome, a drivingspindle; `a locking plate mounted `by the shock from the firing of thement With the arm, a

a driving spindle; a, member 1n engagement with said dome. dur--projectile causing, an mg the setting of the fuse, said member on saidspindle and.-

adapted to turn independentl thereof in setting the fuse'; a couplingetween said plate and said dome com rising two parts engaging each otheran firmly attached respectively to saidplate and said dome; said lockingplate actuated by the shock from the firing ofthe projectile, receivinga limited axial movement, thereby severing its couplin ously interocking firml fuse setting dome, a driving spindle; a lock ing platemounted on said spindle 'and adapted to turn independentl lsetting thefuse; a coupling et-ween said locking plate and said spindlecomprising afiat part on the spindle under said locking plate` a pressure blockspindle over .the locking plate, a core 0fl soft material in saidpressure block, a cu spring mounted 4against a shoulder on4 saldspindle, supporting said locking plate, and a nut threaded on the end ofthevspindle for holding said cup-spring, pressure block and core pressedagainst said shoulder on the spindle; said lookin plate and pressureblock with core, actuate roj ectile, being axially displaced, therebylocking them lrmlyto the spindle, simultane ously severing and saiddome.

6. In a mechanical time fuse having a fuse setting dome, a drivingspindle; a locking-plate, a dome coupling between said plate and said'dome,

with said dome and simultanedr with the spindle, I

causing the plate to revo vewith the spindle.

In a mechanical time fuse, having'll.

locking plate,

the connection of saidv plate thereof in ..30

mounted on said comprising an arm firmly attached to Said plate and a.fork.

firmly attached to said dome and in engagespindle cou ling between saidlocking plate end sai spindle, comprising a fiat part and a shoulder onthe spindle, a pressure block mounted on the spindle, a pliable core insaid block, a sprin mounted between said locking late an said shoulder,a nut at the end ofp the spindle. adapted to hold the parts of saidspindle Vcoupling against the shoulder on the spindle; the shock fromthe firing of the axial displacement of said locking plate and block andthe subsequent disengagement of said arm and said fork, releasing'thedome coupling; together with the subsequent engagement of spindle andlocking spindle piercing the metal of the locking plate and the coresclosing up around the spindle, bringing the spindle coupling intoengagement. f

7. Inv a mechanical time fuse comprising a fuse setting means, a spindleand a driving gear for said spindle; a member mounted on said spindleand adapted to turn independently thereof in setting the fuse, saidspindle plate by the flat part of the having un abutment for saidmember; and The. foregoing Specification signed at :l pressure bleakmounted in Advance of said. Barmen, Gernmny, thia 9th day of Maly,member und zidnpted to be rearwardly disl 1911.

` KARL XVESEB. [nsf] In presence 0fl CMAS. J. 'VRIGI-m, i ALBERT F.NUFER placed by the action of inertia nu firing,

5 thereby driving said member against the abutmentof Suid spindle andlocking it thereto. l

